Hanger bracket pump mountings



Nov. 1, 1955 A. A. WAGNER ET AL 2,722,324

HANGER BRACKET PUMP MOUNTIN;GS Filed Sept. 50, 1954 4 Sheets-Sheet l INVENTORS @000 6'. W/mA/E/e @M, 441mm ATTORNEYS Nov. 1, 1955 A. A. WAGNER ET AL 2,722,324

HANGER BRACKET PUMP MOUNTINGS Filed Sept. 50, 1954 4 Sheets-Sheet 2 ATTOR NEYS I INVENTORS,

A. A. WAGNER ET AL 2,722,324

HANGER BRACKET PUMP MOUNTINGS Nov. 1, 1955 Filed Sept. 30, 1954 fps-3.6

4 SheetsSheet 3 INVENTORS 90040 H. Wfi/VEP ,g e/vwca J. WEE/V56 Nov. 1, 1955 A. A. WAGNER EI'AL HANGER BRACKET PUMP MOUNTINGS 4 Sheets-Sheet 4 Filed Sept. 50, 1954 INVENTORS 4004/ A. Wna/wsz BY Hemp-Lo u. War/v51? 22.2, m 2 M A 7' roar/vs v5 United States Patent fifice 2,722,324 Patented Nov. 1, 1955 HANGER BRACKET PUMP MOUNTINGS Adolph A. Wagner and Arnold J. Werner, Milwaukee, Wis., assignors to Wagner Iron Works, Milwaukee, Wis., a corporation of Wisconsin Application September 31), 1954, Serial N 0. 459,304

23 Claims. (Cl. 214-131) This invention relates to improvements in hanger bracket pump mountings and more particularly to hanger bracket pump mountings for tractors equipped with loader frames.

This application is a continuation-in-part of our copending application, Serial No. 357,284 filed May 25, 1953, now abandoned, and'entitled Pump Mounting. Cross reference is also made to our abandoned co-pending application, Serial No. 273,004 filed February 23, 1952 of the same title.

In the type of tractor apparatus illustrated in our copending application entitled Hydraulic Front End Power Lift Attachment for Tractors, Serial No. 148,961, filed March 10, 1950, now Patent 2,672,994, issued March 23, 1954, the hydraulic pump which powers the boom and other tractor attachments is mounted on the base or loader frame of the tractor. This pump receives power from the engine drive shaft through an extension shaft having a flexible coupling to accommodate for movement of the frame respecting the tractor when the frameis stressed under load or otherwise. In actual practice the coupling is frequently damaged by excessive frame movement, and it has been a source of equipment breakdown.

It is the object of the present invention to relocate the pump and to mount it directlyfrom the tractor and, specifically, upon the hanger plate to which the underslung U-shaped member of the loader frame is connected. The re-located pump, accordingly, receives direct support from the tractor and is not subject to stresses imposed upon the loader.

The invention consists in mounting the loader system pump in fixed relation to the tractor and in alignment with the tractor drive shaft and upon a platform specially provided on the hanger plate aforesaid. In one embodiment of the invention the U-shaped member of the loader frame is rigidly connected to the bracket to transmit bending stresses in the loader frame directly to the tractor. In another embodiment of the invention the U-shaped member of the loader frame is pivotally connected to the hanger bracket to relieve the tractor from such bending stresses.

Other objects and advantages will be more apparent to one skilled in the artupon an examination of the following disclosure.

In the drawings:

Fig. 1 is a side elevation partly broken away and shown in cross section of the front portion of a loader equipped tractor provided with one embodiment of our improved pump mounting.

Fig. 2 is a greatly enlarged longitudinal cross sectional view taken through the tractor and pump mounting portions thereof of the device shown in Fig. l.

Fig. 3 is a front elevation of a tractor embodying our invention as shown in Fig. l, a portion of the radiator being broken away to expose details of construction.

Fig. 4 is a plan view of a tractor embodying our invention as shown in Fig. 1,.portions, of the loader being broken away and the hood and radiator being removed to expose details of the invention.

Fig. 5 is a perspective view of the hanger plate provided with a mounting and pump embodying the invention as shown in Fig. 1.

Fig. 6 is a longitudinal cross sectional view taken through a modified embodiment of tractor front end and pump mounting.

Fig. 7 is a fragmentary front elevational of a tractor and pump mounting embodying our invention as shown in Fig. 6, the pump mounting being broken away forwardly of a cross section taken through the pump support arms.

Fig. 8 is a perspective view of the modified pump mounting of Fig. 6, together with a portion of the tractor to which it is connected.

Fig. 9 is a fragmentary perspective view of a still further modification of our front hanger and pump mounting bracket.

Fig. 10 is a cross sectional view taken along the line 1010 of Fig. 9.

As more fully disclosed in our co-pending application Serial No. 148,961 aforesaid, a tractor indicated generally as 10 may be provided with a loader framework which comprises at each side of the tractor a horizontal member 11 forming an angle at its junction with an inclined member 12. Members 12 are mutually frontally curved in a U-shape to embrace the front end of the tractor as best shown at 13 in Fig. 4. U-shaped member 14 is terminally welded to members 12 and extends over the radiator grill 60. Member 14 provides an anchor for the front grill guard angle strips 15 which are intermediately anchored on member 13 and which curve below member 13 as indicated at 16. Curved guard members 16 terminate in welded connection to the underslung U-shaped loader frame member 17 which extends beneath the tractor body. As best shown in Fig. 2 the supporting frame member 17 is bolted at 18 to the hanger plate 19 of the Fig. l embodiment of the invention, which is in turn bolted to the tractor as hereinafter appears.

As best shown in Fig. 2 the front portion of the tractor body in this embodiment of the invention is provided with longitudinally spaced transverse bearing brackets 22 and 23. The brackets have aligned apertures 24 and 25 to receive a tubular bearing member 26 upon which the front axle 27 of the tractor is pivoted in the conventional manner. The brackets are reinforced about the apertures 24 and 25 by the plates 20 and 21 welded thereto. Through the bore of tubular bearing 26 extends a drive shaft 28 which is provided at 29 with a flexible coupling with the fan belt pulley 30 of the engine drive shaft.

The forward end of the tubular bearing member 26 is flared downwardly at 33 and carries a front plate 34 welded thereto. Plate 34 is apertured at 35 to permit extension of the drive shaft 28 therethrough.

As best shown in Figs. 4 and 5 forward bearing bracket 23 is provided, in approximate alignment with the sides of the engine, with forwardly projecting wings 36 and an overhanging flange 37 within which hanger .plate 19 is receivable in nested relation. Hanger plate 19 is likewise provided with end wings 39 which nest within the wings 36 of the bearing bracket 23. These parts may be bolted together by means of end bolts 43 which engage the nested wings, center bolt 42 disposed directly below shaft 28 and which passes through bearing tube flange 33 and the plate 34, and side bolts 44 which directly connect bearing bracket 23 to the hanger plate. The hanger plate may be additionally securely mounted on bracket 23 by the lower bolts 18 which also mount the underslung member 17 of the loader frame to bracket 23 through upstanding bracket 45 welded to member 17.

In this manner the hanger plate is made unitary with the tractor frame, though the loader is readily removable therefrom by removing bolts 18. In Fig. 6 an alternative structure is shown in which the bolts engaging bracket 45 do not engage the bracket 23, but extend only through the hanger plate.

In order to provide a mount for the hydraulic pump 47 to receive direct support from the tractor frame, We provide a platform 48 supported upon forwardly projecting platform brackets 51 welded at 52 to hanger plate 19. Platform 48 has downturned flanges 53 which nest between and are connected by bolts 54 to the inside faces of brackets 51. The mounting platform is carried by brackets 51 forwardly of hanger plate 19 and the pump is mounted on the platform with its rotor aligned with drive shaft 28. The pump rotor is provided with a drive shaft 55 which fits a slip coupling 56 on the end of drive shaft 28 and in which the shaft may be secured by the set screw 57.

In this embodiment of the invention, in order to accommodate the pump in this position, the grill 60 of radiator 61 has its lower portion swung forwardly from normal position. Trapezoidal plates 62 at each side of the tractor function as spacers to mount the radiator grill in this outwardly extending position. These plates 62, however, have their lower margins spaced upwardly from the bottom of radiator grill 60 to provide passageways through which the hydraulic fluid lines 63 and 64 may extend from the pump 47 to their respective connections on the tractor. Line 63 connects with a fluid reservoir in the hollow frame of the loader, and line 64 extends to a valve control (not shown) within the reach of the tractor operator. Because of relatively slight relative movement between the tractor and loader, these lines are at least somewhat flexible.

It is clear that the loader may be detached from the tractor by removing bolts 18, thereby leaving the pump and the hanger plate 19 mounted on the tractor. The fluid lines 63, 64, of course, must be disconnected before the loader frame is completely separated from the tractor.

The pump is supported independently of yieldable portions of the frame. In the preferred embodiment illustrated the connections of the pump to the bracket are completely independent of the connections of the loader frame to the bracket.

Also illustrated in the drawing are reinforcing braces 65 and 66 which are connected by the strap clamps 67 and 68 respectively to the horizontal loader members 11 at each side of the tractor. as shown in Figs. 1, 3 and 4 at 71 directly to the engine block, or they may merely abut a convenient projection on the engine block. Braces 65 and 66 supplement the rigid connection of the underslung U-shaped members 17 to the front end of the tractor and reinforce the loader against stresses imposed by heavy loads.

As in the embodiment of the invention shown in Fig. 1 through Fig. 5, the front portion of the tractor body in the embodiment of the invention shown in Figs. 68 is provided with longitudinally spaced transverse bearing brackets 72 and 73. Bracket 73 may be shaped somewhat ditferently from bracket 23, as will hereinafter ap pear. The brackets have aligned apertures 74 and 75 to receive the tubular bearing member 76 upon which the front axle of the tractor is pivoted in the same manner as is shown in Figs. 2 and 4. Brackets 72 and 73 are reinforced about the apertures 74 and 75 by the plates 78 and 79 Welded thereto. Through the bore of tubular bearing 76 extends a drive shaft 80 which is provided, as in the first described embodiment of the invention, with a flexible coupling 29 connecting the shaft to the fan belt pulley 30 of the engine drive shaft.

In this embodiment of the invention the downwardly flared portion 81 of the tubular bearing member 76 does not extend as far as its corresponding parts 33 in These braces may be bolted the embodiment of Fig. 2. The same is true of the front plate 82 which is welded to the forward end of the bearing tube 76. Plate 82, of course, is provided with an aperture 85 to permit extension of the drive shaft 80 therethrough.

The forward bearing bracket 73, like the bearing bracket 23 in the embodiment of the invention shown in Figs. l-S, is provided with forwardly projecting wings 86 and over-hanging flange 87 within which our modified hanger plate 88 is received as best shown in the perspective view of Fig. 8. In this modification of the invention we have eliminated the complementary wings 39 which appear on the plate 19 of the previously described embodiment of the invention. The hanger plate has been otherwise modified in important details to permit the pump to be mounted outside the radiator grill 89 of the tractor. Accordingly, in this embodiment of the invention, the grill need not be offset forwardly from the radiator near its bottom to accommodate the pump, as is the case in the embodiment of Figs. 1-5.

In this embodiment of the invention the downwardly projecting arms 90 of the pump bracket comprise angle irons having their upwardly projecting flanges 91 cut out as shown at 92 to receive the notched portions 93 of the radiator grill 89. The grill 89 may further be cut out at 94 in alignment with the drive shaft 80 to provide for connection of the shaft 80 with the pump 97 mounted on the bracket 48. As in the first described embodiment of the invention bracket 48 has downturned flanges 53 and nuts and bolts 54 which mount the bracket on the flanges 91 of the bracket arms. The apertures in the flanges 91 may be upwardly elongated as shown at 98 to provide for vertical adjustment of the bracket 48 and pump 97.

To reinforce the arms 90 at their cut out portions 92 we provide oblique braces 99 which are welded to the face of hanger plate 88 and converge from welded connection with the butt ends of the flanges 91 upwardly toward each other. The braces 99, moreover, so reinforce the plate as to permit elimination of the plate wings 39 shown in the Fig. 1-5 embodiment of the invention.

The hanger plate 88 is rigidly but removably attached to the forward bearing bracket 73 of the tractor by means of center bolt 100 and side bolts 101. Center bolt 100 passes through the hanger plate 88, plate 82, flange 81, plate 79 and bracket 73. Side bolts 101 connect plate 88 directly to the bearing bracket 73.

In this embodiment of the invention, the bolt 102, which is offset downwardly from bolt 100, may be optionally used to further mount the hanger plate to the bracket. As best shown in Fig. 6, bolt 102 passes through the hanger plate 88, plate 79 and bearing bracket 73. Bolts 100, 101, 102 may be provided with nuts (as in Fig. 2) or may be tapped into threaded connection with the bearing bracket 73 (as in Fig. 5).

The upstanding bracket 45 on the underslung U-shaped loader frame member 17 may be substantially the same as that shown in the embodiment of the invention illustrated in Figs. 1-5. This bracket is provided with removable bolts 18 by which it is rigidly secured to the lower margin of the hanger plate 88 between the arms 90 of the pump mounting bracket. Unlike the device shown in Figs. 1-5, however, bolt 18 does not engage the front bearing bracket 73 of the tractor, the bearing bracket being rearwardly curved as illustrated. The precise arrangement, however, is optional and will depend upon the type and shape of front bearing bracket supplied with the tractor.

We may also optionally provide, instead of the slip coupling 56 as shown in Fig. 2, an additional flexible coupling 103 between the pump rotor shaft and the engine drive shaft 80. The flexible coupling is normally concealed behind the radiator grill 89. As is conventional pump 97 is provided with fluid lines, one of which is numbered 104, leading to the hydraulic reservoir in the loader frame and to control valves not shown.

The embodiment of the invention shown in Figs. 6-8 is preferred over that shown in Figs. 1-5 in that it is unnecessary to disturb the position of the radiator grill. For this purpose the arms 90 in the Fig. 68 embodiment are made slightly longer than the arms 51 in the Fig. 1-5 embodiment. However, in both embodiments, both the pump and the loader frame member are mounted to the same hanger plate, the pump being isolated from bending strains transmitted through the loading frame to the tractor.

The embodiment of the invention shown in Figs. 9 and 10 permits the loader frame to pivot with respect to its tractor mounting without transmitting any substantial bending stress in the loader frame to the tractor. The hanger bracket plate 106 is quite similar to plate 88 of the embodiment of Figs. 6 and 8. It is provided with two side holes 107 and a center hole 108 by which the plate may be rigidly connected to the tractor bracket 73 shown in Fig. 8. Plate 106 is also provided with angle arms 109 having upright flanges 110 with vertically elongated apertures 111 for the mounting of the same type of platform as is identified by reference character 48 in Fig. 8. The upright flanges 111 of the arms 109 are cut away at 112 to receive notches of a radiator grill in the manner shown in Fig. 7. The plate 106 and arms 109 are braced by the obliquely extending webs 113 welded to the face of plate 106.

In the device of this embodiment, however, the U- shaped underslung member 17 is pivotally suspended by its upstanding bracket plate 114 to pivot pin 115. Pivot pin 115 is supported in bearing aperture 118 through plate 106 and bearing aperture 119 through strap or plate 120 which is spaced from plate 106 and has its terminal ends welded at 121 to the upright flanges 110 of arms 109. The spacing of plates 106 and 120 is sutficient to receive bracket plate 114 therebetween and may substantially equal the width of the reinforcing webs 113. Plate 120 further reinforces the webs 113 and the arms 109 as it cross connects opposite pairs of these members at the junction thereof.

In the device of this embodiment of the invention bending stresses in the loading frame are not noticeably transmitted to the tractor as the frame is relatively free for pivotal movement about the pin 115. Moreover, regardless of the movement of the loader frame, the independent and rigid mounting of the pump mounting platform insures against breakage of the pump drive shaft.

We claim:

1. A hanger plate for attachment to a tractor having a loader frame subject to bending stress and a forwardly projecting drive shaft, said plate being provided with means for releasably mounting it on the tractor, a platform forwardly extending from said plate and mounting means on the platform to which a pump may be secured through said platform and hanger plate directly to said tractor and in alignment with said tractor drive shaft, said hanger plate further comprising means for mounting said loader frame on the tractor independent of said pump mounting means whereby bending stresses imposed on the loader frame are transmitted directly to the tractor without affecting the pump and its alignment with the tractor drive shaft.

2. The device of claim 1 in which said loader mounting means comprises means for rigidly mounting the loader to the hanger plate.

3. The device of claim 1 in which said loader mounting means comprises means for pivotally mounting the loader to the hanger plate.

4. The device of claim 1 wherein the platform comprises arms connected to the plate, said arms having cut out portions to receive the tractor radiator grill therein, and brace members welded to the face of the plate and to the butt ends of said arms.

5. The device of claim 4 in which said brace members converge upwardly from said arms.

6. The device of claim 4 wherein said tractor is provided with a radiator cover, said pump mounting comprising a hanger plate and arms extending forwardly from said hanger plate, said arms being provided with cut out portions adjacent the connection of the arms to the hangerplate to receive a complementary portion of the tractor radiator cover between the hanger plate and pump.

7. The device of claim 6 in which said mounting means comprises a hanger plate having spaced platform arms projecting forwardly therefrom and on which the pump is mounted, said loader mounting means comprising a coupling disposed on said plate between said arms.

8. The device of claim 6 wherein said tractor is provided with a radiator cover, said pump mounting comprising a hanger plate and arms extending forwardly from said hanger plate, said arms, being provided with cut-out portions adjacent the connection of the arms to the hanger plate to receive a complementary portion of the tractor radiator cover between the hanger plate and pump.

9. The device of claim 6 wherein said tractor is provided with a radiator cover, said pump mounting comprising a hanger plate and arms extending forwardly from said hanger plate, said arms being provided with cut out portions adjacent the connection of the arms to the hanger plate to receive a complementary portion of the tractor radiator cover between the hanger plate and pump, said hanger plate being provided with braces welded thereto and converging upwardly from the connection of the arms with the plate.

10. The device of claim 1 wherein said tractor is provided with a radiator cover and said pump is mounted behind said cover, said cover being offset at its bottom portion from the hanger to be outside said pump and to provide a passage for a flexible fluid line from said pump to a fluid reservoir in the loader frame, and a spacer plate between the tractor and radiator cover, said plate being wider at the bottom than at the top whereby the cover is offset forwardly at its bottom from the tractor.

11. The device of claim 10 wherein the spacer plate has a lower margin upwardly spaced from the bottom of the cover to provide said passage.

12. In combination, a tractor having a forwardly projecting power take-off shaft, a loader frame and a hydraulic system requiring a pump for its operation, means supporting the loader frame detachably on the tractor and including a bracket in rigid connection with the front of the tractor and having a releasable connection with the loader frame, certain portions of the frame being yieldable for relative movement respecting the bracket, a pump for said hydraulic system provided with a rigid mounting to said bracket independently of yieldable portions of the frame and having a drive shaft coupled with the tractor power take-off shaft, and hydraulic connections carried by the frame and having inlet and outlet connection with the pump and flexible to accommodate such yielding without aifecting the pump or coupling.

13. The device of claim 12 wherein the connections of the pump to the bracket are independent of the connections of the loader frame to the bracket.

14. The device of claim 12 in which connections of the pump to the bracket extend forwardly of the bracket and the connections to the loader frame extend downwardly from the bracket.

15. The device of claim 12 in which the releasable connection from the bracket to the loader frame is rigid.

16. The device of claim 12 in which the releasable connection from the bracket to the loader frame comprises a pivot.

17. The device of claim 16 in which said bracket comprises a plate mounted to the tractor and a plate spaced therefrom, said loader frame being provided with a bracket plate receivable between said spaced plates, said spaced plates and intervening plate having bearing apertures aligned to receive said pivot.

18. The device of claim 17 in which said pump mounting comprises spaced arms forwardly projecting from said bracket, the plate spaced from the bracket plate having terminal connections to said arms.

19. A hanger plate for attachment to a tractor having a forwardly projecting drive shaft, said plate being provided with means for releasably mounting it on the tractor, platform arms forwardly extending from said plate and means on the platform arms for mounting a pump in alignment with the tractor drive shaft, a second plate mounted on said hanger plate in spaced relation thereto, said plates being provided with aligned bearing apertures and a pivot pin journaled in said bearing apertures to provide a pivotal mount for a loader frame attached to the tractor.

20. The device of claim 19 in which said hanger plate is further provided with reinforcing webs having terminal connections to the forwardly projecting platform arms and converging therefrom along'the face of said plate, said second plate having a terminal connection to the intersection of said webs and platform arms.

21. In a device of the character described, a combined tractor loader frame hanger and mounting for a pump, comprising a plate, means for connecting the plate to the tractor, a platform projecting forwardly from said plate and comprising means upon which said pump may be mounted, said plate being further provided with depending means for the connection thereto of said loader frame.

22. The device of claim 21 in which said platform comprises arms having butt ends connected to the plate, the portions of said arms near their butt ends being notched.

23. The device of claim 22 in which said plate is provided with brace members converging upwardly from said arms.

No references cited. 

